Toward the Design of a Hierarchical Perovskite Support: Ultra-Sintering-Resistant Gold Nanocatalysts for CO Oxidation

Chengcheng Tian; Xiang Zhu; Carter W. Abney; Xiaofei Liu; Guo Shiou Foo; Zili Wu; Meijun Li; Harry M. Meyer; Suree Brown; Shannon M. Mahurin; Sujuan Wu; Shi Ze Yang; Jingyue Liu; Sheng Dai

doi:10.1021/acscatal.7b00483

Toward the Design of a Hierarchical Perovskite Support: Ultra-Sintering-Resistant Gold Nanocatalysts for CO Oxidation

Chengcheng Tian, Xiang Zhu, Carter W. Abney, Xiaofei Liu, Guo Shiou Foo, Zili Wu, Meijun Li, Harry M. Meyer, Suree Brown, Shannon M. Mahurin, Sujuan Wu, Shi Ze Yang, Jingyue Liu, Sheng Dai

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

An ultrastable Au nanocatalyst based on a heterostructured perovskite support with high surface area and uniform LaFeO₃ nanocoatings was successfully synthesized and tested for CO oxidation. Strikingly, small Au nanoparticles (4-6 nm) are obtained after calcination in air at 700 °C and under reaction conditions. The designed Au catalyst not only possessed extreme sintering resistance but also showed high catalytic activity and stability because of the strong interfacial interaction between Au and the heterostructured perovskite support.

Original language	English
Pages (from-to)	3388-3393
Number of pages	6
Journal	ACS Catalysis
Volume	7
Issue number	5
DOIs	https://doi.org/10.1021/acscatal.7b00483
State	Published - May 5 2017

Funding

The research was supported financially by U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division. Electron microscopy at Oak Ridge National Laboratory (to S.Z.Y.) was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering. S.W. was financially supported by the National Natural Science Foundation of China (No. 51302329) and the Fundamental Research Funds for the Central Universities (No.106112015CDJXY130010). J.L. acknowledges support of the National Science Foundation under CHE-1465057 and the use of facilities in the John M. Cowley Center for High Resolution Electron Microscopy at Arizona State University. XAFS data were collected at the Advanced Photon Source at Argonne National Laboratory on Beamline 10ID-B, supported by the Materials Research Collaborative Access Team (MRCAT). MRCAT operations are supported by the DOE and the MRCAT member institutions. The Advanced Photon Source is a U.S. DOE Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. In situ FTIR studies were conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. The United States Government retains, and by accepting the article for publication the publisher acknowledges that the United States Government retains, a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for the United States Government Purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Funders	Funder number
DOE Public Access Plan
Materials Research Collaborative Access Team
Materials Science and Engineering
United States Government
National Science Foundation	CHE-1465057, 1465057
U.S. Department of Energy
Office of Science
Basic Energy Sciences
Argonne National Laboratory	DE-AC02-06CH11357
Oak Ridge National Laboratory
Chemical Sciences, Geosciences, and Biosciences Division
National Natural Science Foundation of China	51302329
Fundamental Research Funds for the Central Universities	106112015CDJXY130010

Keywords

gold nanopaticle
heterogeneous catalysis
high temperature
perovskite
sintering-resistance

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10.1021/acscatal.7b00483

Cite this

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abstract = "An ultrastable Au nanocatalyst based on a heterostructured perovskite support with high surface area and uniform LaFeO3 nanocoatings was successfully synthesized and tested for CO oxidation. Strikingly, small Au nanoparticles (4-6 nm) are obtained after calcination in air at 700 °C and under reaction conditions. The designed Au catalyst not only possessed extreme sintering resistance but also showed high catalytic activity and stability because of the strong interfacial interaction between Au and the heterostructured perovskite support.",

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author = "Chengcheng Tian and Xiang Zhu and Abney, {Carter W.} and Xiaofei Liu and Foo, {Guo Shiou} and Zili Wu and Meijun Li and Meyer, {Harry M.} and Suree Brown and Mahurin, {Shannon M.} and Sujuan Wu and Yang, {Shi Ze} and Jingyue Liu and Sheng Dai",

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AU - Liu, Xiaofei

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AU - Wu, Zili

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AU - Meyer, Harry M.

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AU - Liu, Jingyue

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Toward the Design of a Hierarchical Perovskite Support: Ultra-Sintering-Resistant Gold Nanocatalysts for CO Oxidation

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Keywords

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